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2007-05-08vt: add documentation for new boot/sysfs optionsAntonino A. Daplas
Add description to Documentation/kernel-parameters.txt on new options default_blue, default_grn, default_red, and default_utf8. Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08fbdev: mm: Deferred IO supportJaya Kumar
This implements deferred IO support in fbdev. Deferred IO is a way to delay and repurpose IO. This implementation is done using mm's page_mkwrite and page_mkclean hooks in order to detect, delay and then rewrite IO. This functionality is used by hecubafb. [adaplas] This is useful for graphics hardware with no directly addressable/mappable framebuffer. Implementing this will allow the "framebuffer" to be accesible from user space via mmap(). Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08Char: mxser, schedule for removalJiri Slaby
mxser, schedule for removal Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08x86, serial: convert legacy COM ports to platform devicesBjorn Helgaas
Make x86 COM ports into platform devices and don't probe for them if we have PNP. This prevents double discovery, where a device was found both by the legacy probe and by 8250_pnp, e.g., serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A 00:02: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A This also means IRDA devices without a UART PNP ID will no longer be claimed by the serial driver, which might require changes in IRDA drivers and administration. In addition to this patch, you may need to configure a setserial init script, e.g., /etc/init.d/setserial, so it doesn't poke legacy UART stuff back in. On Debian, "dpkg-reconfigure setserial" with the "kernel" option does this. To force the old legacy probe behavior even when we have PNPBIOS or ACPI, load the new legacy_serial module (or build 8250 static) with the "legacy_serial.force" option. [akpm@linux-foundation.org: fix makefiles] Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Keith Owens <kaos@ocs.com.au> Cc: Len Brown <lenb@kernel.org> Cc: Adam Belay <ambx1@neo.rr.com> Cc: Matthieu CASTET <castet.matthieu@free.fr> Cc: Jean Tourrilhes <jt@hpl.hp.com> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Cc: Ville Syrjala <syrjala@sci.fi> Cc: Russell King <rmk+serial@arm.linux.org.uk> Cc: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08smsc-ircc2: add PNP supportBjorn Helgaas
Claim devices using PNP, unless the user explicitly specified device addresses. This can be disabled with the "smsc-ircc2.nopnp" option. This removes the need for probing legacy addresses and helps untangle IR devices from serial8250 devices. Sometimes the SMC device is at a legacy COM port address but does not use the legacy COM IRQ. In this case, claiming the device using PNP rather than 8250 legacy probe means we can automatically use the correct IRQ rather than forcing the user to use "setserial" to set the IRQ manually. If the PNP claim doesn't work, make sure you don't have a setserial init script, e.g., /etc/init.d/setserial, configured to poke in legacy COM port resources for the IRDA device. That causes the serial driver to claim resources needed by this driver. Based on this patch by Ville Syrjälä: http://www.hpl.hp.com/personal/Jean_Tourrilhes/IrDA/ir260_smsc_pnp.diff Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Keith Owens <kaos@ocs.com.au> Cc: Len Brown <lenb@kernel.org> Cc: Adam Belay <ambx1@neo.rr.com> Cc: Matthieu CASTET <castet.matthieu@free.fr> Cc: Jean Tourrilhes <jt@hpl.hp.com> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Cc: Ville Syrjala <syrjala@sci.fi> Cc: Russell King <rmk+serial@arm.linux.org.uk> Acked-by: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08Kprobes: The ON/OFF knob thru debugfsAnanth N Mavinakayanahalli
This patch provides a debugfs knob to turn kprobes on/off o A new file /debug/kprobes/enabled indicates if kprobes is enabled or not (default enabled) o Echoing 0 to this file will disarm all installed probes o Any new probe registration when disabled will register the probe but not arm it. A message will be printed out in such a case. o When a value 1 is echoed to the file, all probes (including ones registered in the intervening period) will be enabled o Unregistration will happen irrespective of whether probes are globally enabled or not. o Update Documentation/kprobes.txt to reflect these changes. While there also update the doc to make it current. We are also looking at providing sysrq key support to tie to the disabling feature provided by this patch. [akpm@linux-foundation.org: Use bool like a bool!] [akpm@linux-foundation.org: add printk facility levels] [cornelia.huck@de.ibm.com: Add the missing arch_trampoline_kprobe() for s390] Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Srinivasa DS <srinivasa@in.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08rtc: remove "RTC_ALM_SET mode" bugsDavid Brownell
This fixes a common glitch in how RTC drivers handle two "set alarm" modes, by getting rid of the surprising/hidden one that was rarely implemented correctly (and which could expose nonportable hardware-specific behavior). The glitch comes from the /dev/rtcX logic implementing the legacy RTC_ALM_SET (limited to 24 hours, needing RTC_AIE_ON) ioctl on top of the RTC driver call providing access to the newer RTC_WKALM_SET (without those limitations) by initializing the day/month/year fields to be invalid ... that second mode. Now, since few RTC drivers check those fields, and most hardware misbehaves when faced with invalid date fields, many RTC drivers will set bogus alarm times on those RTC_ALM_SET code paths. (Several in-tree drivers have that issue, and I also noticed it with code reviews on several new RTC drivers.) This patch ensures that RTC drivers never see such invalid alarm fields, by moving some logic out of rtc-omap into the RTC_ALM_SET code and adding an explicit check (which will prevent the issue on other code paths). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Scott Wood <scottwood@freescale.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08SPI kerneldocDavid Brownell
Various documentation updates for the SPI infrastructure, to clarify things that may not have been clear, to cope with lack of editing, and fix omissions. Also, plug SPI into the kernel-api DocBook template, and fix all the resulting glitches in document generation. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08/dev/spidevB.C interfaceAndrea Paterniani
Add a filesystem API for <linux/spi/spi.h> stack. The initial version of this interface is purely synchronous. dbrownell@users.sourceforge.net: Cleaned up, bugfixed; much simplified; added preliminary documentation. Works with mdev given CONFIG_SYSFS_DEPRECATED; and presumably udev. Updated SPI_IOC_MESSAGE ioctl to full spi_message semantics, supporting groups of one or more transfers (each of which may be full duplex if desired). This is marked as EXPERIMENTAL with an explicit disclaimer that the API (notably the ioctls) is subject to change. Signed-off-by: Andrea Paterniani <a.paterniani@swapp-eng.it> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08docbook: librs typo fixesRandy Dunlap
librs docbook typo fixes. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08Misc: add sensable phantom driverJiri Slaby
Add sensable phantom driver Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08laptop-mode URL updateZach Carter
Signed-off-by: Zach Carter <linux@zachcarter.com> Cc: Bart Samwel <bart@samwel.tk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08doc: fix oops-tracing duplicateMichal Piotrowski
Remove duplicate 'U' entry -- fix mis-merge. Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08Fix chapter reference in CodingStyleJesper Juhl
commit 226a6b84aaaf1fac7a5d41cf4e7387fd9ba895d5 renumbered Chapter 11 in Documentation/CodingStyle to Chapter 12, but it didn't update the reference to that chapter further down in the file. This patch corrects the chapter reference. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08fat: don't use free_clusters for fat32OGAWA Hirofumi
It seems that the recent Windows changed specification, and it's undocumented. Windows doesn't update ->free_clusters correctly. This patch doesn't use ->free_clusters by default. (instead, add "usefree" for forcing to use it) Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Juergen Beisert <juergen127@kreuzholzen.de> Cc: Andreas Schwab <schwab@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08The scheduled -EINVAL for invalid timevals in setitimerAdrian Bunk
As scheduled, do_setitimer() now returns -EINVAL for invalid timeval. Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08CodingStyle: start flamewar about use of bracesOliver Neukum
Signed-off-by: Oliver Neukum <oneukum@suse.de> Cc: Tilman Schmidt <tilman@imap.cc> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08getdelays.c: fix overrunScott Wiersdorf
A patch for getdelays.c that fixes a buffer overrun when you set -w. Cc: <matt@bluehost.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08Taskstats: fix getdelays usage informationRandy Dunlap
Add usage to getdelays.c. This patch was originally posted by Randy Dunlap http://lkml.org/lkml/2007/3/19/168 Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Balbir Singh <balbir@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08Documentation: cciss: detecting failed drivesStephen M. Cameron
Document how to detect drive failures for cciss Signed-off-by: Stephen M. Cameron <steve.cameron@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08kernel-doc: generate main index page when building 'htmldocs'Borislav Petkov
A patch for kernel-doc that enables the generation of a global, TOC-like index.html page after building 'htmldocs' Signed-off-by: Borislav Petkov <bbpetkov@yahoo.de> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08Deprecate SA_xxx interrupt flags -V2Thomas Gleixner
The deprecation of the SA_xxx interrupt flags did not emit deprecated warnings. Andrew said about the removal of the deprecated flag defines: > This is going to break a lot of external stuff. We should have found > a way to make usage of SA_* emit deprecated warnings (or _some_ > warning) to warn people of impending doom. But I can't immediately > find a way of doing that. if we _can_ find a way of doing this, I > suspect we'll need to do it, and give people another six months. It's > going to get ugly out there. We shall see... Define the deprecated flags as a call to a __deprecated inline function so a warning is emitted on compile time. Extend the reprieve of out of tree drivers to 9/2007. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08schedule obsolete OSS drivers for removal, 4th roundAdrian Bunk
Schedule obsolete OSS drivers for removal. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08VFS: delay the dentry name generation on sockets and pipesEric Dumazet
1) Introduces a new method in 'struct dentry_operations'. This method called d_dname() might be called from d_path() to build a pathname for special filesystems. It is called without locks. Future patches (if we succeed in having one common dentry for all pipes/sockets) may need to change prototype of this method, but we now use : char *d_dname(struct dentry *dentry, char *buffer, int buflen); 2) Adds a dynamic_dname() helper function that eases d_dname() implementations 3) Defines d_dname method for sockets : No more sprintf() at socket creation. This is delayed up to the moment someone does an access to /proc/pid/fd/... 4) Defines d_dname method for pipes : No more sprintf() at pipe creation. This is delayed up to the moment someone does an access to /proc/pid/fd/... A benchmark consisting of 1.000.000 calls to pipe()/close()/close() gives a *nice* speedup on my Pentium(M) 1.6 Ghz : 3.090 s instead of 3.450 s Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Acked-by: Christoph Hellwig <hch@infradead.org> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08proc: maps protectionKees Cook
The /proc/pid/ "maps", "smaps", and "numa_maps" files contain sensitive information about the memory location and usage of processes. Issues: - maps should not be world-readable, especially if programs expect any kind of ASLR protection from local attackers. - maps cannot just be 0400 because "-D_FORTIFY_SOURCE=2 -O2" makes glibc check the maps when %n is in a *printf call, and a setuid(getuid()) process wouldn't be able to read its own maps file. (For reference see http://lkml.org/lkml/2006/1/22/150) - a system-wide toggle is needed to allow prior behavior in the case of non-root applications that depend on access to the maps contents. This change implements a check using "ptrace_may_attach" before allowing access to read the maps contents. To control this protection, the new knob /proc/sys/kernel/maps_protect has been added, with corresponding updates to the procfs documentation. [akpm@linux-foundation.org: build fixes] [akpm@linux-foundation.org: New sysctl numbers are old hat] Signed-off-by: Kees Cook <kees@outflux.net> Cc: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08tty: Clarify documentation of ->write()Alan
The tty driver write method is different to the usual fops device write methods as the buffer is already in kernel space. Clarify the docs since someone writing a driver made that mistake. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08Documentation: Ask driver writers to provide PM supportRafael J. Wysocki
Add a paragraph in Documentation/SubmittingDrivers requesting that the basic PM support be provided by new device drivers. Add two new documents in Documentation/power/ giving general instructions on debugging the suspend/resume functionality and testing the suspend and resume support in device drivers. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Pavel Machek <pavel@ucw.cz> Cc: David Brownell <david-b@pacbell.net> Cc: Nigel Cunningham <ncunningham@linuxmail.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] update memory attribute aliasing documentation & test cases [IA64] fail mmaps that span areas with incompatible attributes [IA64] allow WB /sys/.../legacy_mem mmaps [IA64] make ioremap avoid unsupported attributes [IA64] rename ioremap variables to match i386 [IA64] relax per-cpu TLB requirement to DTC [IA64] remove per-cpu ia64_phys_stacked_size_p8 [IA64] Fix example error injection program [IA64] Itanium MC Error Injection Tool: pal_mc_error_inject() interface [IA64] Itanium MC Error Injection Tool: Makefile changes [IA64] Itanium MC Error Injection Tool: Driver sysfs interface [IA64] Itanium MC Error Injection Tool: Doc and sample application [IA64] Itanium MC Error Injection Tool: Kernel configuration
2007-05-07Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: (38 commits) sh: R7785RP board updates. sh: Update r7780rp defconfig. sh: Add die chain notifiers. sh: Fix APM emulation on hp6xx. sh: Wire up more IRQs for SH7709. sh: Solution Engine 7722 board support. sh: Fix r7780rp build. sh: kdump support. sh: Move clock reporting to its own proc entry. sh: Solution Engine SH7705 board and CPU updates. serial: sh-sci: Fix module clock refcount for serial console. serial: sh-sci: Fix module clock refcounting. sh: SH7722 clock framework support. sh: hp6xx pata_platform support. sh: Obey CONFIG_HZ for HZ definition. sh: Fix fstatat64() syscall. sh: se7780 PCI support. sh: SH7780 Solution Engine board support. sh: Add a dummy SH-4 PCIC fixup. sh: Tidy up L-BOX area5 addresses. ...
2007-05-07power management: change /sys/power/disk displayJohannes Berg
Change /sys/power/disk to display all valid modes as well as the currently selected one in a fashion known from the LED subsystem. This changes userspace API, but it is apparently not used much (we asked some userspace developers) Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: "Rafael J. Wysocki" <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07blackfin architectureBryan Wu
This adds support for the Analog Devices Blackfin processor architecture, and currently supports the BF533, BF532, BF531, BF537, BF536, BF534, and BF561 (Dual Core) devices, with a variety of development platforms including those avaliable from Analog Devices (BF533-EZKit, BF533-STAMP, BF537-STAMP, BF561-EZKIT), and Bluetechnix! Tinyboards. The Blackfin architecture was jointly developed by Intel and Analog Devices Inc. (ADI) as the Micro Signal Architecture (MSA) core and introduced it in December of 2000. Since then ADI has put this core into its Blackfin processor family of devices. The Blackfin core has the advantages of a clean, orthogonal,RISC-like microprocessor instruction set. It combines a dual-MAC (Multiply/Accumulate), state-of-the-art signal processing engine and single-instruction, multiple-data (SIMD) multimedia capabilities into a single instruction-set architecture. The Blackfin architecture, including the instruction set, is described by the ADSP-BF53x/BF56x Blackfin Processor Programming Reference http://blackfin.uclinux.org/gf/download/frsrelease/29/2549/Blackfin_PRM.pdf The Blackfin processor is already supported by major releases of gcc, and there are binary and source rpms/tarballs for many architectures at: http://blackfin.uclinux.org/gf/project/toolchain/frs There is complete documentation, including "getting started" guides available at: http://docs.blackfin.uclinux.org/ which provides links to the sources and patches you will need in order to set up a cross-compiling environment for bfin-linux-uclibc This patch, as well as the other patches (toolchain, distribution, uClibc) are actively supported by Analog Devices Inc, at: http://blackfin.uclinux.org/ We have tested this on LTP, and our test plan (including pass/fails) can be found at: http://docs.blackfin.uclinux.org/doku.php?id=testing_the_linux_kernel [m.kozlowski@tuxland.pl: balance parenthesis in blackfin header files] Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Aubrey Li <aubrey.li@analog.com> Signed-off-by: Jie Zhang <jie.zhang@analog.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07mm: fix handling of panic_on_oom when cpusets are in useYasunori Goto
The current panic_on_oom may not work if there is a process using cpusets/mempolicy, because other nodes' memory may remain. But some people want failover by panic ASAP even if they are used. This patch makes new setting for its request. This is tested on my ia64 box which has 3 nodes. Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Signed-off-by: Benjamin LaHaise <bcrl@kvack.org> Cc: Christoph Lameter <clameter@sgi.com> Cc: Paul Jackson <pj@sgi.com> Cc: Ethan Solomita <solo@google.com> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07slub: add slabinfo toolChristoph Lameter
Add the tool which gets reports about slabs to the VM documentation directory. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07slub: user documentationChristoph Lameter
Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07smaps: add clear_refs file to clear referenceDavid Rientjes
Adds /proc/pid/clear_refs. When any non-zero number is written to this file, pte_mkold() and ClearPageReferenced() is called for each pte and its corresponding page, respectively, in that task's VMAs. This file is only writable by the user who owns the task. It is now possible to measure _approximately_ how much memory a task is using by clearing the reference bits with echo 1 > /proc/pid/clear_refs and checking the reference count for each VMA from the /proc/pid/smaps output at a measured time interval. For example, to observe the approximate change in memory footprint for a task, write a script that clears the references (echo 1 > /proc/pid/clear_refs), sleeps, and then greps for Pgs_Referenced and extracts the size in kB. Add the sizes for each VMA together for the total referenced footprint. Moments later, repeat the process and observe the difference. For example, using an efficient Mozilla: accumulated time referenced memory ---------------- ----------------- 0 s 408 kB 1 s 408 kB 2 s 556 kB 3 s 1028 kB 4 s 872 kB 5 s 1956 kB 6 s 416 kB 7 s 1560 kB 8 s 2336 kB 9 s 1044 kB 10 s 416 kB This is a valuable tool to get an approximate measurement of the memory footprint for a task. Cc: Hugh Dickins <hugh@veritas.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Christoph Lameter <clameter@sgi.com> Signed-off-by: David Rientjes <rientjes@google.com> [akpm@linux-foundation.org: build fixes] [mpm@selenic.com: rename for_each_pmd] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07add new_id to PCMCIA driversBernhard Walle
PCI drivers have the new_id file in sysfs which allows new IDs to be added at runtime. The advantage is to avoid re-compilation of a driver that works for a new device, but it's ID table doesn't contain the new device. This mechanism is only meant for testing, after the driver has been tested successfully, the ID should be added in source code so that new revisions of the kernel automatically detect the device. The implementation follows the PCI implementation. The interface is documented in Documentation/pcmcia/driver.txt. Computations should be done in userspace, so the sysfs string contains the raw structure members for matching. Signed-off-by: Bernhard Walle <bwalle@suse.de> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07sh: SH7722 clock framework support.dmitry pervushin
This adds support for the SH7722 (MobileR) to the clock framework. Signed-off-by: dmitry pervushin <dimka@nomadgs.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-07doc: Update sysrq doc for sh kgdb trigger.Paul Mundt
sh uses the same sysrq trigger as ppc, update the documentation to reflect that. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuildLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild: (38 commits) kconfig: fix mconf segmentation fault kbuild: enable use of code from a different dir kconfig: error out if recursive dependencies are found kbuild: scripts/basic/fixdep segfault on pathological string-o-death kconfig: correct minor typo in Kconfig warning message. kconfig: fix path to modules.txt in Kconfig help usr/Kconfig: fix typo kernel-doc: alphabetically-sorted entries in index.html of 'htmldocs' kbuild: be more explicit on missing .config file kbuild: clarify the creation of the LOCALVERSION_AUTO string. kbuild: propagate errors from find in scripts/gen_initramfs_list.sh kconfig: refer to qt3 if we cannot find qt libraries kbuild: handle compressed cpio initramfs-es kbuild: ignore section mismatch warning for references from .paravirtprobe to .init.text kbuild: remove stale comment in modpost.c kbuild/mkuboot.sh: allow spaces in CROSS_COMPILE kbuild: fix make mrproper for Documentation/DocBook/man kbuild: remove kconfig binaries during make mrproper kconfig/menuconfig: do not hardcode '.config' kbuild: override build timestamp & version ...
2007-05-06Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (82 commits) [ARM] Add comments marking in-use ptrace numbers [ARM] Move syscall saving out of the way of utrace [ARM] 4360/1: S3C24XX: regs-udc.h remove unused macro [ARM] 4358/1: S3C24XX: mach-qt2410.c: remove linux/mmc/protocol.h header [ARM] mm 10: allow memory type to be specified with ioremap [ARM] mm 9: add additional device memory types [ARM] mm 8: define mem_types table L1 bit 4 to be for ARMv6 [ARM] iop: add missing parens in macro [ARM] mm 7: remove duplicated __ioremap() prototypes ARM: OMAP: fix OMAP1 mpuio suspend/resume oops ARM: OMAP: MPUIO wake updates ARM: OMAP: speed up gpio irq handling ARM: OMAP: plat-omap changes for 2430 SDP ARM: OMAP: gpio object shrinkage, cleanup ARM: OMAP: /sys/kernel/debug/omap_gpio ARM: OMAP: Implement workaround for GPIO wakeup bug in OMAP2420 silicon ARM: OMAP: Enable 24xx GPIO autoidling [ARM] 4318/2: DSM-G600 Board Support [ARM] 4227/1: minor head.S fixups [ARM] 4328/1: Move i.MX UART regs to driver ...
2007-05-05Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6Linus Torvalds
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (231 commits) [PATCH] i386: Don't delete cpu_devs data to identify different x86 types in late_initcall [PATCH] i386: type may be unused [PATCH] i386: Some additional chipset register values validation. [PATCH] i386: Add missing !X86_PAE dependincy to the 2G/2G split. [PATCH] x86-64: Don't exclude asm-offsets.c in Documentation/dontdiff [PATCH] i386: avoid redundant preempt_disable in __unlazy_fpu [PATCH] i386: white space fixes in i387.h [PATCH] i386: Drop noisy e820 debugging printks [PATCH] x86-64: Fix allnoconfig error in genapic_flat.c [PATCH] x86-64: Shut up warnings for vfat compat ioctls on other file systems [PATCH] x86-64: Share identical video.S between i386 and x86-64 [PATCH] x86-64: Remove CONFIG_REORDER [PATCH] x86-64: Print type and size correctly for unknown compat ioctls [PATCH] i386: Remove copy_*_user BUG_ONs for (size < 0) [PATCH] i386: Little cleanups in smpboot.c [PATCH] x86-64: Don't enable NUMA for a single node in K8 NUMA scanning [PATCH] x86: Use RDTSCP for synchronous get_cycles if possible [PATCH] i386: Add X86_FEATURE_RDTSCP [PATCH] i386: Implement X86_FEATURE_SYNC_RDTSC on i386 [PATCH] i386: Implement alternative_io for i386 ... Fix up trivial conflict in include/linux/highmem.h manually. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-05Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (87 commits) [SCSI] fusion: fix domain validation loops [SCSI] qla2xxx: fix regression on sparc64 [SCSI] modalias for scsi devices [SCSI] sg: cap reserved_size values at max_sectors [SCSI] BusLogic: stop using check_region [SCSI] tgt: fix rdma transfer bugs [SCSI] aacraid: fix aacraid not finding device [SCSI] aacraid: Correct SMC products in aacraid.txt [SCSI] scsi_error.c: Add EH Start Unit retry [SCSI] aacraid: [Fastboot] Panics for AACRAID driver during 'insmod' for kexec test. [SCSI] ipr: Driver version to 2.3.2 [SCSI] ipr: Faster sg list fetch [SCSI] ipr: Return better qc_issue errors [SCSI] ipr: Disrupt device error [SCSI] ipr: Improve async error logging level control [SCSI] ipr: PCI unblock config access fix [SCSI] ipr: Fix for oops following SATA request sense [SCSI] ipr: Log error for SAS dual path switch [SCSI] ipr: Enable logging of debug error data for all devices [SCSI] ipr: Add new PCI-E IDs to device table ...
2007-05-04Merge branch 'for-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/dtor/input: (65 commits) Input: gpio_keys - add support for switches (EV_SW) Input: cobalt_btns - convert to use polldev library Input: add skeleton for simple polled devices Input: update some documentation Input: wistron - fix typo in keymap for Acer TM610 Input: add input_set_capability() helper Input: i8042 - add Fujitsu touchscreen/touchpad PNP IDs Input: i8042 - add Panasonic CF-29 to nomux list Input: lifebook - split into 2 devices Input: lifebook - add signature of Panasonic CF-29 Input: lifebook - activate 6-byte protocol on select models Input: lifebook - work properly on Panasonic CF-18 Input: cobalt buttons - separate device and driver registration Input: ati_remote - make button repeat sensitivity configurable Input: pxa27x - do not use deprecated SA_INTERRUPT flag Input: ucb1400 - make delays configurable Input: misc devices - switch to using input_dev->dev.parent Input: joysticks - switch to using input_dev->dev.parent Input: touchscreens - switch to using input_dev->dev.parent Input: mice - switch to using input_dev->dev.parent ... Fixed up conflicts with core device model removal of "struct subsystem" manually. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-04Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: remove "struct subsystem" as it is no longer needed sysfs: printk format warning DOC: Fix wrong identifier name in Documentation/driver-model/devres.txt platform: reorder platform_device_del Driver core: fix show_uevent from taking up way too much stack
2007-05-04Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (59 commits) PCI: Free resource files in error path of pci_create_sysfs_dev_files() pci-quirks: disable MSI on RS400-200 and RS480 PCI hotplug: Use menuconfig objects PCI: ZT5550 CPCI Hotplug driver fix PCI: rpaphp: Remove semaphores PCI: rpaphp: Ensure more pcibios_add/pcibios_remove symmetry PCI: rpaphp: Use pcibios_remove_pci_devices() symmetrically PCI: rpaphp: Document is_php_dn() PCI: rpaphp: Document find_php_slot() PCI: rpaphp: Rename rpaphp_register_pci_slot() to rpaphp_enable_slot() PCI: rpaphp: refactor tail call to rpaphp_register_slot() PCI: rpaphp: remove rpaphp_set_attention_status() PCI: rpaphp: remove print_slot_pci_funcs() PCI: rpaphp: Remove setup_pci_slot() PCI: rpaphp: remove a call that does nothing but a pointer lookup PCI: rpaphp: Remove another wrappered function PCI: rpaphp: Remve another call that is a wrapper PCI: rpaphp: remove a function that does nothing but wrap debug printks PCI: rpaphp: Remove un-needed goto PCI: rpaphp: Fix a memleak; slot->location string was never freed ...
2007-05-04Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6Linus Torvalds
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: (44 commits) i2c-s3c2410: Fix bug in releasing driver i2c-s3c2410: Fix I2C SDA to SCL setup time i2c: New i2c-tiny-usb bus driver i2c: Documentation update i2c: SPIN_LOCK_UNLOCKED cleanup i2c: Obsolete i2c-ixp2000, i2c-ixp4xx and scx200_i2c i2c: New Simtec I2C bus driver i2c: Bitbanging I2C bus driver using the GPIO API Use menuconfig objects - I2C i2c: Restore i2c_smbus_read_block_data i2c-pxa: Clean transaction stop i2c-algo-bit: Improve debugging i2c-algo-bit: Implement a 50/50 SCL duty cycle i2c-omap: Switch to static adapter numbering i2c: Blackfin Two Wire Interface driver i2c-algo-sgi: Comment and whitespace cleanups i2c: Make i2c_del_driver a void function i2c: Move i2c-isa-only exported symbol declarations i2c: Document i2c_new_device() i2c: Add i2c_new_probed_device() ... Fixed trivial conflict in Documentation/feature-removal-schedule.txt manually. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-04MAINTAINER change for Connect Tech IncStuart MacDonald
I am no longer with CTI. The Support Department will handle all inquiries regarding the WH. Signed-off-by: Stuart MacDonald <stuartm@connecttech.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-04[S390] cio: Deprecate read_dev_chars() and read_conf_data{,_lpm}().Cornelia Huck
These helper functions are a leftover from 2.4 sync I/O and are a notorious source for bugs. They lead to device driver specific code creeping into cio, and some issues can't really be fixed at all. Device drivers can easily implement those functions themselves in a more robust manner, so let's get rid of them. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-05-02PCI: the overdue removal of pci_module_init()Adrian Bunk
Unless we finally completely remove it, people will always add new users. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-05-02PCI: remove the broken PCI_MULTITHREAD_PROBE optionAdrian Bunk
This patch removes the PCI_MULTITHREAD_PROBE option that had already been marked as broken. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>